The first piece(s) of toilet paper used to wipe your butthole. The scouter will determine the viscosity, amount and consistency of the faeces having to be dealt with. After analysing the fecal matter on the scouter, one can assemble a "game plan" on how to further deal with it.
A good scouter is multi-layer folded toilet paper, which can handle even the worst of situations.

Just took a massive dump, couldn't believe my eyes when the scouter said there was nothing to be found. Feels good man.

An electronic device from the Dragon Ball Z series that is worn on the left ear with a heads up display lens that sits over the left eye. In the series, a scouter's primary purpose is to calculate the individual power level or ki concentration of biological characters. Scouters also serve the purpose of gathering information or interstellar communication.